GE Lamps Mercury Vapor Lamp, HID, HR400A33 Designation, 400 W Wattage, Mercury Vapor Lamp, E39 Mogul Screw Lamp Base, ED37 Shape, 21000 Lumens Initial, 14700 Lumens Mean, 20000 hr Average Life, 15 CRI, 5700 K Color Temperature, Clear Lamp, Open/Closed Fixture, 4.625 in Dia x 11.31 in L

• https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/GE_11026_Catalog.pdf https://www.iesbuy.com//ASSETS/DOCUMENTS/ITEMS/EN/https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/GE_11026_Catalog.pdf
• https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/IDW_DOCUMENT_02387131218bb24a11adcd975c78a1612627f8849d9df4600c5ea3756debcbb7.pdf https://www.iesbuy.com//ASSETS/DOCUMENTS/ITEMS/EN/https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/IDW_DOCUMENT_02387131218bb24a11adcd975c78a1612627f8849d9df4600c5ea3756debcbb7.pdf

• HID is generally the most efficient light source
• Better efficiency almost always means lower operating cost
• Most HID lamps have life ratings that are better than incandescent lamps and similar to fluorescent lamps
• An HID lamp produces high light output from a relatively compact source
• Like incandescent, it is a point light source, which allows for good optical control
• Phosphor coated deluxe lamps provide good color rendering